Gas-heater.



PATENTED JUNE 7, 1904.

J. J. LAWLER.

GAS HEATER. 7 APPLICATION FILED JULY 25, 1903.

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UNITED STATES Patented June '7, 1904.

PATENT OFFICE.

GAS-HEATER.

SPECIFICATION forming part of Letters Patent No. 762,067, dated June 7, 1904.

Application filed July 25, 1903.

To an whom it puny concern.-

Be it known that I, J AMES J. LAWLER, a citizen of the United States, and a resident of Mount Vernon, in the county of VVestchester and State of New York, have invented certain new and useful Improvements in Gas-Heaters, of which the following is a specification.

My invention relates to an improvement in gas-heaters for warming rooms and belongs to that particular variety in which a Bunsen burner is used, the special object of my invention being to produce a substantial flat vertical heater adapted to be used in connection with the air-flue of a furnace where such exists in a house or in the absence of such flues to set the heater against the wall, there by occupying very little space and be, in effect, a hot-air heater, the heated air being deflected in one direction into the room in which the heater stands.

Each constituent element of my invention is described in detail and its individual office, together with the mode of operation of the whole, fully explained hereinbelow Reference being had to the accompanying drawings, Figure 1 is an end view, in central section, of my improved heater. Fig. 2 is a front elevation, one-half being shown in section. Fig. 3 is an enlarged rearward view of a portion of the back frame and shutterblades.

Similar reference characters refer to similar parts in the several views.

I prefer to make'the body or case of the heater and the inner deflecting-plate of castiron on account of cheapness, rigidity, and least expense of fitting and assembling.

The back 1 is a frame provided with upper and loweropenings 2 3, respectively, adapted for connection with an upper or lower airline, (shown by dotted lines in Fig. 1 and marked A B, respectively.)

4 represents a series of semicircular depressions arranged at regular intervals on each vertical inner edge, so as to engage, by means of a screw 5, with a series of shutterblades 6, having a semicircularprojection 7 on each end, which fits into the semicircular depression, as is shown in Fig. v3.

8 is a base-plate provided with an opening Serial No. 166,935. (No model.)

28, also having the semicircular depressions 4, the object of this opening being that the heater may be set over an air-flue O, coming up through the floor.

9 10 are the side plates, which are shown to consist of two separate castings on each side, both fitted into a molding 11, which extends around from the sides to the front. The two side plates may, however, be each of one single casting and be used without the side molding, which is herein shown for symmetry.

12 is the curved top plate.

13 is a perforated front plate through which the heated air is discharged.

14: is a lower front plate which incloses the burners and forms the heating-chambers. I prefer to make this chamber somewhat larger than the upper one, so as to give more room to the burners. l The lower front plate 14: is provided with a series of lower openings 15, which can be closed off by means of a slide 16, the object of these openings being the regulation of the individual burners 17, said burners having thumb-screws 18 for the regulation of the quantity of gas without decreasing the pressure, an improvement for which an application for Letters Patent was filed by me on April 21, 1902, Serial No. 103,843.

A further object of the openings 15 is to admit air to the burners when the heater is used without any air or furnace connection.

' 19 represents a series of openings somewhat above the burners 17 so as to permit the lighting of the mixed gases issuing from the burners and also to observe the height and condition of the flames.

20 is a slide to close off the opening 19.

21 is a curved deflecting-plate placed vertically near the center of the heater and extending from a short distance above the floor line or base up to and connecting with the perforated plate 13. The inner or concaved side of the plate 21 may be lined with asbestos 22.

23 is a clapper-plate or valve to close off the air coming through the flue A B, if con nected. Dotted lines in Fig. 1 show the clapper down and air shut off. This valve may be supported on a rod 24, passing through the side plates. The burners 17 are mounted on a gas-pipe 25, supported by the side plates and adapted for connecting with a main suppl y-pipe in any preferred way. A hose-cock 26 is shown, though it is obvious that an allpipe connection can be made, and thus overcome the objection in some cities to a connection with a flexible tube.

I show my improved atmospheric burner because it is very simple, not liable to get out of order, and well adapted for the purpose; but I do not claim this form or type of burner in combination with my improved heater, as almost any style of burner which answers the purpose can be used, and I do not, therefore, confine myself to any specific kind of a gas-burner.

In Fig. 3 I show the shutter-blades held in place by a turnbuckle 27, which pivots on the frame 1 and which when pushed over the semicircular projection 7 will hold the blade securely in place.

Having fully described the construction of my improved heater, the operation is as follows: The heaters are sold with all shutterblades in place, so that the two rear as well as the bottom openings are closed. If the heater is to be used as it isthat is, no connection to be made with an air-flue inletthen the gas is connected. The two slides in the front of the burner-chamber are opened and the gas is lighted. The slides being left wholly or partly open for the ingress of air to support combustion as well as for heating. If, however, the heater is to be connected up with an air-inlet flue, the shutter-blades at the desired point are removed and the mouth of the air pipe or flueis fitted into theheaterframe. The gas connection having been made, the gas is lighted through the front openings in the burner-chamber, when the slides may be closed. When the clapper-valve is open, the'air passes up through the furnace (not shown) and thence through the air-pipes A, B, or (J, whichever one is connected with the heater. When the air enters through pipe A, which is the most common position of an air-register in the wall of a house, it strikes the plate, where it is partly warmed by contact. Then passing down, it passes the clappervalve, and ascending it is heated both by the gas-jets as well as by contacting with the curved plate and sides of the heater, the hot air being forced out into the room through the perforations in plate 13. The heater thus answers a dual purpose-namely, first, it can be used in the spring or fall of the year when there is no fire in the furnace, or, second, it can be used on extremely cold days when the furnace is in operation, but not giving enough heat, in which case the burners will assist in raising the temperature of the air going into the room. When the furnace is inoperation and the gas in the heater is turned off, the case of the heater is then a register, so called, the heater-air merely passing therethrough, the clapper-valve regulating the desired quantity or shutting the hot air off entirely.

By the use of my heater when connected to a furnace air-pipe a constant supply of fresh air from outdoors can be had in a room, and the same can be heated or not at the pleasure of the user, and fires in furnace need not be lighted for the sake of comfort until winter has positively set in, and, again, in the spring when there are many warm days the furnacefires can be permitted to die out; but should a damp or cold day come along by lighting the gas-burners in my improved heater rooms in which they are placed can be comfortably heated without the trouble of restarting the fire in the furnace.

The setting of the furniture of a room remains constant, as the heat emanates from the same place, whether the furnace or this heater be used, thus differing from a house in which gas-stoves or legs are used when the furnacefire is out. I show a preferred means of securing the shutter-blades to the frame of the heater; but any other method of fastening may be used without departing from the spirit of my invention.

Having now fully described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, is

1. A gas-heater comprising a casinghaving its back and bottom provided with openings adapted to register with the air-flue of a furnace, means for controlling said openings, a vertically-arranged deflecting-plate within the casing, forming a heating-chamber, and a valve arranged at the lower termination of the plate to control the ingress of air in the heating-chamber from the said back openings.

2. A heater comprising a casing having its back and bottom provided with openings to be used in connection with the airflue of a furnace, means for controlling the openings, a foraminous front plate, a deflecting-plate forming in conjunction with the front of the casinga heating-chamber, a valve controlling communication between the opposing sides of the plate, and burners arranged in the heating-chamber.

3. A heater comprising a casing having openings to be used in connection with the airfiue of a furnace, means for controlling the openings, a foraminous front plate on the easing, a deflecting-plate forming a heatingchamber between itself and the front plate, and extending a distance above the bottom, a valve arranged on the deflecting-plate, and burners arranged in the heating-chamber.

4. A heater consisting of. a casing having openings, at the upper and lower portions of its" back and in its bottom, with means for controlling all of said openings, a foraminous front plate, a deflecting-platehaving its up- York and State of NeW York, this 23d day of per end curved. and extending to said front July, A. D. 1903.- plate, and having a valve arranged on its lower end and controlling communication be- JAMES J. LAWVLER.

5 tween the heating chamber and the air- Witnesses: v

chamber. E. WHITNEY,

Signed at New York, in the county of New CHAS. P. ALBEE.

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